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Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design

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Polish validation of Brace Questionnaire.

Edyta Kinel¹, Tomasz Kotwicki, Anna Podolska

¹Department of Rehabilitation, University of Medical Sciences, Poznan, Poland. ekinel@amp.edu.pl

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society

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Summary

The Polish version of the Brace Questionnaire (BrQ) is a reliable tool for assessing the quality of life in adolescents with adolescent idiopathic scoliosis undergoing conservative brace treatment.

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Area of Science:

Orthopedics
Quality of Life Research
Psychometrics

Background:

Adolescent idiopathic scoliosis (AIS) significantly impacts quality of life.
Conservative brace treatment is a common management strategy for AIS.
Validated instruments are needed to measure quality of life in AIS patients undergoing bracing.

Purpose of the Study:

To culturally adapt and validate the Brace Questionnaire (BrQ) for Polish-speaking adolescents with AIS.
To establish the reliability and psychometric properties of the Polish version of the BrQ.

Main Methods:

The Brace Questionnaire (BrQ) was translated from Greek to Polish.
Cultural adaptation followed International Quality of Life Assessment Project guidelines.
35 adolescents (10.0-16.0 years) with AIS (mean Cobb angle 35.1°), wearing Chêneau orthoses for >3 months, participated.
Reliability (internal consistency) and floor/ceiling effects were statistically analyzed.

Main Results:

The Polish BrQ demonstrated satisfactory internal consistency, with a Cronbach's alpha coefficient of 0.94.
No floor or ceiling effects were observed, indicating the questionnaire captures the full range of quality of life.
The adapted questionnaire is suitable for the target population.

Conclusions:

The Polish version of the Brace Questionnaire (BrQ) is a reliable and valid instrument.
It can be effectively used to assess the quality of life in Polish adolescents with idiopathic scoliosis undergoing brace treatment.